結果
問題 | No.120 傾向と対策:門松列(その1) |
ユーザー | femto |
提出日時 | 2015-04-06 00:25:25 |
言語 | C#(csc) (csc 3.9.0) |
結果 |
AC
|
実行時間 | 122 ms / 5,000 ms |
コード長 | 6,391 bytes |
コンパイル時間 | 1,047 ms |
コンパイル使用メモリ | 120,696 KB |
実行使用メモリ | 31,672 KB |
最終ジャッジ日時 | 2024-07-04 02:24:35 |
合計ジャッジ時間 | 2,004 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge4 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 112 ms
29,496 KB |
testcase_01 | AC | 122 ms
29,624 KB |
testcase_02 | AC | 77 ms
31,672 KB |
testcase_03 | AC | 116 ms
29,492 KB |
コンパイルメッセージ
Microsoft (R) Visual C# Compiler version 3.9.0-6.21124.20 (db94f4cc) Copyright (C) Microsoft Corporation. All rights reserved.
ソースコード
using System; using System.Diagnostics; using System.Collections.Generic; using System.Linq; using Enu = System.Linq.Enumerable; class Solution { int T, N; int[] L; void calc() { T = ri(); var ans = new List<int>(); for (int loop = 0; loop < T; loop++) { N = ri(); L = ria(N); var countdic = new Dictionary<int, int>(); foreach (var l in L) { if (!countdic.ContainsKey(l)) { countdic.Add(l, 0); } countdic[l]++; } var q = new PriorityQueue<elem>((e1, e2) => e1.count.CompareTo(e2.count)); foreach (var pair in countdic) { q.Push(new elem(pair.Key, pair.Value)); } int kadomatu = 0; while (q.Count() >= 3) { var elems = new elem[3]; for (int i = 0; i < 3; i++) { elems[i] = q.Pop(); } foreach (var e in elems) { e.count--; if (e.count > 0) q.Push(e); } kadomatu++; } ans.Add(kadomatu); } foreach (var a in ans) { Console.WriteLine(a); } } class elem { public int num, count; public elem(int num, int count) { this.num = num; this.count = count; } } static void Main(string[] args) { new Solution().calc(); } #region static int ri() { return int.Parse(Console.ReadLine()); } static int[] ria(int n) { if (n <= 0) { Console.ReadLine(); return new int[0]; } else return Console.ReadLine().Trim().Split(' ').Select(int.Parse).ToArray(); } static void rio(out int p1) { p1 = ri(); } static void rio(out int p1, out int p2) { var r = ria(2); p1 = r[0]; p2 = r[1]; } static void rio(out int p1, out int p2, out int p3) { var r = ria(3); p1 = r[0]; p2 = r[1]; p3 = r[2]; } static void rio(out int p1, out int p2, out int p3, out int p4) { var r = ria(4); p1 = r[0]; p2 = r[1]; p3 = r[2]; p4 = r[3]; } static void rio(out int p1, out int p2, out int p3, out int p4, out int p5) { var r = ria(5); p1 = r[0]; p2 = r[1]; p3 = r[2]; p4 = r[3]; p5 = r[4]; } static long rl() { return long.Parse(Console.ReadLine()); } static long[] rla(int n) { if (n <= 0) { Console.ReadLine(); return new long[0]; } else return Console.ReadLine().Trim().Split(' ').Select(long.Parse).ToArray(); } static void rlo(out long p1) { p1 = rl(); } static void rlo(out long p1, out long p2) { var r = rla(2); p1 = r[0]; p2 = r[1]; } static void rlo(out long p1, out long p2, out long p3) { var r = rla(3); p1 = r[0]; p2 = r[1]; p3 = r[2]; } static void rlo(out long p1, out long p2, out long p3, out long p4) { var r = rla(4); p1 = r[0]; p2 = r[1]; p3 = r[2]; p4 = r[3]; } static void rlo(out long p1, out long p2, out long p3, out long p4, out long p5) { var r = rla(5); p1 = r[0]; p2 = r[1]; p3 = r[2]; p4 = r[3]; p5 = r[4]; } static double rd() { return double.Parse(Console.ReadLine()); } static double[] rda(int n) { if (n <= 0) { Console.ReadLine(); return new double[0]; } else return Console.ReadLine().Trim().Split(' ').Select(double.Parse).ToArray(); } static void rdo(out double p1) { p1 = rd(); } static void rdo(out double p1, out double p2) { var r = rda(2); p1 = r[0]; p2 = r[1]; } static void rdo(out double p1, out double p2, out double p3) { var r = rda(3); p1 = r[0]; p2 = r[1]; p3 = r[2]; } static void rdo(out double p1, out double p2, out double p3, out double p4) { var r = rda(4); p1 = r[0]; p2 = r[1]; p3 = r[2]; p4 = r[3]; } static void rdo(out double p1, out double p2, out double p3, out double p4, out double p5) { var r = rda(5); p1 = r[0]; p2 = r[1]; p3 = r[2]; p4 = r[3]; p5 = r[4]; } static void swap<T>(ref T x, ref T y) { T temp = x; x = y; y = temp; } static void wa1<T>(T[] a) { Debug.WriteLine(string.Join(" ", a)); } static void wa2<T>(T[][] a) { foreach (var row in a) { Debug.WriteLine(String.Join(" ", row)); } } [DebuggerDisplay("{x} , {y}")] class point { public int x, y; public point(int x, int y) { this.x = x; this.y = y; } } #endregion } static class Extention { public static T[][] ToJagArray<T>(this T[,] a) { int n = a.GetLength(0), m = a.GetLength(1); var ret = new T[n][]; for (int i = 0; i < n; i++) { ret[i] = new T[m]; for (int j = 0; j < m; j++) { ret[i][j] = a[i, j]; } } return ret; } } public class PriorityQueue<T> { private List<T> buffer; private Comparison<T> comp; // 昇順 // (e1, e2) => e2.CompareTo(e1) // 降順 // (e1, e2) => e1.CompareTo(e2) public PriorityQueue(Comparison<T> comp) { buffer = new List<T>(); this.comp = comp; } public PriorityQueue(Comparison<T> comp, IEnumerable<T> data) : this(comp) { foreach (T e in data) Push(e); } public void Push(T elem) { PushHeap(this.buffer, elem); } public T Pop() { return PopHeap(this.buffer); } public int Count() { return buffer.Count; } public T Top() { return buffer[0]; } private void PushHeap(List<T> array, T elem) { int n = array.Count; array.Add(elem); while (n != 0) { int i = (n - 1) / 2; // 親と値を入れ替え if (comp(array[n], array[i]) > 0) { T tmp = array[n]; array[n] = array[i]; array[i] = tmp; } n = i; } } private T PopHeap(List<T> array) { int n = array.Count - 1; T returnelem = array[0]; array[0] = array[n]; array.RemoveAt(n); for (int i = 0, j; (j = 2 * i + 1) < n; ) { // 値の大きい方の子を選ぶ if ((j != n - 1) && (comp(array[j], array[j + 1]) < 0)) j++; // 子と値を入れ替え if (comp(array[i], array[j]) < 0) { T tmp = array[j]; array[j] = array[i]; array[i] = tmp; } i = j; } return returnelem; } }